Automatic cut-off for sound-reproducing machines.



J. EIFEL.

AUTOMATIC GUT-OFF FOR SOUND REPRODUGING MACHINES.

APPLIOATION FILED APR. 1, 190'].

Patented Nov. 17, 1908. 4 SHEETSSHEET 1.

IK 5 v J. EIFEL.

AUTOMATIC GUT-OPP ron scum) REPRODUCING MACHINES.

' APPLICATION FILED APR. 1, 1907. 904,187, Patented Nov. 17, 1908. v 4 SHEETS-SHEET'Z.

l-llll firive/zwr' J. EIPEL. AUTOMATIC OUT-OFF FOR. SOUND REPRODUGING MACHINES.

APPLICATION FILED APR.1, 1907.

03 MW m 11 g Nm 4 M a. n .e W a W P J. EIFEL.

AUTOMATIC CUT-OFF FOR SOUND REPRODUGING MACHINES.

APPLICATION FILED APR; 1. mm.

904,187. I Patented Now-17,1908

4 SHEETS-SHEET 4.

$52 74 6153613 4 'wfo f' Y which a moving record is employed to actu- -for'actuating the cut-ottmechanism which I have shown it in connection with both UNITED STATES PATENT orrion.

JOSEPH FIFFIII, OF CHICAGO, lLhlltOlS.-

AUTOMATIC CUT-OFF FOR SOUND-REPRODUCING MACHINES.

'0 all 1117mm it may comm-n.

Be it known that l, Josm'u Film-:11, a citizen of the United States, residing at Chicago, in the county of Cook amt State of Illinois, have invented certain new and useful In provements in Automatic (lut ()tl's, tor Soulid-.l{epr(nlu.cing llla'chines, of which the following is a specification;

My invention relates to sound reproducing instruments wherein sounds are reproduced through the medium of a reproducer actl|- ated by a record in motion, and more particularly to the mechanism employed to control the starting and stopping of the record, and its objects are; to provide a t-ZllOtIlJ,-Stlftf, and accurate means for antoimitieally stop ping the mechanism at the end of the record, or at. any predeterniincd point when the complete record is not used, to provide means may be located at any desired point upon the record itself, or upon the mandrel carrying the record, and to generally improve the efliciency and reduce the cost of autmnatic cut-otl' devices for sound reproducing machines. While my device is adaptable to all forms of sound reproducing machines in ate the reproducei', it is particularly well adapted for use in connection with music boxes or phonographs employing a disk or cylindrical record, and in order to more clearly illustrate the above objects and other advantages hich will hereinafter appear,

types of .machines. in the accompanying drawings, whereinr Figure l, is a plan view, with parts broken a\'ay,'of a disk phonograph having my improiwments applied thereto;

l igure 2 is a vertical section on the. line Ill l ot -l igure 1, through the disk and mandrel carrying the same, with the reproducer in position thereon, in elevation;

Figure 3 is a sectional detail of a portion of a disk record. showing one form of means en'iployed to operate the cut-oft mechanism;

Figure .4 is a vertical section on the line IVIV of Figure 1, showing one form of stopping mechanism, consisting of a brake shm anddisk, together with the mechanism for operating the same when it' is desired to start. the machine;

Figure 5 is a. similar section on the line Specification of Letters Patent. Application filed April 1, 1907. Serial No. 365,682.

V-V of Fi 'ure 1 showin the mechanism Patented Nov. 17, 1908.

employed to automatically operate the cut otl' when the machine is to be stopped;

Figure (3 is a section on the line VI-Vl of Figure 1, showing the catch employed to hold the stopping mechanism open when the machine is in operation;

Figure 7 is a front elevation of a cylinorical machine adapted to cut-oft at two points, with a.portionot' the reproducer. broken away to show the roller and its lever which serve to operate the cut-oft mechanism;

Figure 8 is a detail perspective view of one endol a cylindrical record adapted to operate the cut-oti' mechanism together with the systei'n of lovers constituting the latter;

Figuret) is a plan view of the cut-off mechanism;

Figure 10 is an end view partly in section, showing the parts in their running or open position;

Figure 111 is a side elevation of one end of a record and mandrel, together with the stop or projection carried upon the end of the mandrcl,an d j,

l igures 1-2 and 13 are an end and view respectiw ly ot' the mechanism i trated in Figure l.

The means employed to actuate the'cutotl mechanism is practically the same in both types of machines, and consists broadly of a series of levers actuated by a projection 14 located at any desired point upon the record or mandrel carrying the same. The cut-oil i'nechanism itself may be of the type con1-' monly employed in such machines, which consists of a brake lever 15 adapted to be thrown into contact with a brake disk It) by mcansot' a spring 17, when it is desired to stop the machine. as shown in the drawings, or any other suitable stopping mechanism may be employed. The speed at which the record is rotated is controlled by a centrifugal governor 18 ot' the usual type, as is also the driving means, and the same do not form part, of the present invention which retales pa rticularty to the mechanism employed to control the above described cut-oil" mechanism. This controlling mechanism is designed to be easily attached to any of the sound reproducing machines now on the market. by making plan In a few minor changes in the parts used to start and stop such machines. t

In the construction shown in Figures lt'o 6 inclusive, which illustrates the application chine stopped.

means of a screw 32, to the'reproducer arm of my device to a disl: machine, the spring 1? acts upon a rod 19 in such a manner to thrust its inner end against the brake lever 15 when it isv desired to stop the machine, The rod 19 is slidably mounted in bearings 20 attached to underside of the lid 'of thedoox, and is provided upon its outer end with a knob orhandle by means of which it can be withdrawn from contact with the lever 15 when it is desired to start 'the machine. Llhe spring 17 surrounds and is at tached at one. end to the rod 19, and as its opposite end abuts against the outer hearing 20, the spring will always be under compression when the 'rodis withdrawn and the machine running, and will act to normally hold the parts in their locked position. Vvhen the rod 19 is withdrawn it is automatically locked in its release position, and the machine is free to run until a predetermined point upon the record has been reached, when the rod'19 is released and forced inward against the brake lever 15 by the expansion of the spring 17, and the ma- In order to provide for such locking and releasingof the rod 19. a lever 21 is pivoted at 22 ltO the underside of the lid of the box, and has its short arm, which is bifurcated, connected to the rod by means'of a slot andv pin connection as shown in Figures 1 and 5. The o posite long end. of the lever 21 is provided with a pin 24 projecting through a slot formed in the lid of the box as in Figure 6, and to the upper end of this pin is secured a Hat bar 25 arranged atright angles to the lever 21 and slidably mounted in a boring 26 secured to the upper side of the lid of the box. The flat bar 25 is provided upon its imdeiside with a projection 27 which engages a lever 28 pivoted at one end, 2.), to the lid of the box, in such a manner as to prevent the lever 21 being swung around its pivot point 22, until the lever 28 is depressed. The lever 28 is normally held in its raised'position by means of a fiat spring 30 interposed between it and the lid of the box, and is depressed to release the lever 2l'and allow the spring 17 to apply the brake through the medium of an approximately U-shaped lever 31 in a manner to be presently described. The lever 31 is pivoted at the forward end of its horizontal portion by and its forward end beyond said pivot point depends and is provided upon its lower end with a roller 34 held in close proximity to the record, in the path of the projection 14. in a manner to be presently described. A spring 35 is attached to the underside of the arm 31, and bears against a pin 36 in the arm 33 in a manner to normally hold the roller adjacent the record.

and the opposite depending portion 37 of the arm 3 free of the lever 28. in. order l that thejspring 35 may not cause the roller edge of the lever 31, when the machine is running. I

The operation of the device s as follows: The rod 19 is pulled out, releasing the brake lever'l-B and allowing the machine to start.

Such movement of the rod 19 also compresses the spring 17- and shifts the lever 21, which is then locked in position. by means of the lever 28 and projection 27 on the rod 25, as

shown in Fig. (3. At the same time the roller 34 is adjacent to the record, and being connected to the reproducer arm, follows the course of the sound groove until it comes int-0 contact with the projection 14, which causes the forward end of the lever 31 to rise againstthe spring 35 thereby depressing the,

rear end 37 of the lever 31, which in turn depresses the lever 28 and releases the bar 25, thus allowing the spring 17 to shift the rod 19 into engagement with the brake lever 15, when the brakes are set and the machine brought to a standstill. From the foregoing it will be seen that the machine may be stopped at any point at which the projection may be located, or by varying the number of projections it can be started and stopped as.

often as desired, and in the ease of a machine using a cylindrical record, as illustrated in Figure 7, the final stop may, if desired,.be located upon the mandrel carrying the record, instead of on the record itself, in order that thesound groove may extend to the extreme end of the record.

shown in Figures 3 and 8, wherein the same is hlghest at the center and mclmes towards \Vhile I prefer to make the projection on the record, of the form each end, any preferred form of projection may be used, and the projection may be made a part of the record itself, or in the form of a plug set in the record, as desired.

In Figures 7 to 13 inclusive, I have shown my device as applied to a phonograph of the ordinary commercial cylindrical type, andin lhisinstance the brake lever 15 is directly connected to the spring 17 at its lower end in the usual manner, and has its upper end ex-:

tending through a slot in the lid of the box in order to form a handle for shifting it to start or stop the machine. By reference to Figure 7 it will be seen that it is not necessary to alter the cut-off mechanism in order to apply my device, as itis secured to the top of the box and connected to t .ie'upper end of the lever 15 by a pivotal screw 39 of the simplest construction. The lever 31 carrying the roller is pivoted to the ieproducersupport at 32 as in the disk machine, but the spring 35 is dispensed with, as the force of gravity will be sufi icient to hold the roller 34 in proper relation to the record; the movement of the lever towards the record being (ontrolled by means of a set screw 38 in the lever 31 which bears against the top of the frame supporting the record during the entire n'iovement of the latter.

The lever 15 is autoimttirallv loeked and released through the medium of a bar 40 eonneeted thereto at one end by means of the pivot itt, amt having its other end slidably supported in a bearing 41 seeured to the top of the box. The bar 40 is also provided with a noteh 42 Wllit'll engages with the lower arm of a bell erank lever H pivotallv mounted upon the top of the box aml provided with a transverse extension l-t upon its upper end. said extension being so disposed with relation to the reeord that it will be arted upon by the lower end of the lever when the roller 23- eemes into eontaet' with the projertion 14 in-a manner to disengage the lever 1 from the noteh l2, thereby allowing the spring I? to eoutaet and bring the lower end ot'tbe lever l5 into eontaet with the disk It', whereby the maehine is stopped.

As shown in Figures T, ll, 12, and 13, the projection on the end of the mandrel may (-onsist of a head It pivotally eonnerted to the upperend of a vertical link 14* which in turn is pivoted at. its lower end to the head of the mandrel in sueh a manner that. it, .together with the head H. can be swung within the (-irrtunferenee oi the mandrel ord therefrom. The link 14" is held in an upright or a horizontal position by means ofa spring 14 interposed between it and the head of the mandreh'aml a spring M" se eured to the bark of the link nets in a similar manner to hold the head H securely in its operative position. Other advantages of the devire will readily ot-eur to those familiar with the art.

l laving tlu|s deseribed my invention and illustrated its use. what I claim as new and desire'to seeure by Letters Patent, is the following I l. The eombinat'ion with a sound IPPI'O' dueing nnu-hine, of a eut-otl' therefor eomprising in eombination. a brake, yielding means for normally holding it in braking position, a rateh for holding it in release position. a pivotally mounted. tripping lever mounted to move with the reprodueer and having one end in position to engage the eateh, and means mounted to move with the rotating reeord support in position to engage the other end of the tripping lever.

2. The (aunbiuation with a sound reproduring maehine. of a eut-otf therefor comprising in Combination. a brake, yielding means for normally holding it in braking position, a catch for holding it in release )osition, a pivotally mounted tripping lever mounted to'inove with the reprodueer and having one end in position to engage the eateh, and a projecting means mounted to more with the rotating reeord support in po sit-ion to engage the other end of the tripping lever.

t. The eombination with a sound reproduring maehine. of a rut-oil therefor eomprising in eombhiation. a brake, yielding means for normally holding it in braking position. a rah-h movable in a substantially vertiralplane for holding it in release position, a tripping lever mounted to move with the reprodueer and pivotally supported for oseillation in a substantially vertieal plane with one end in position to engage and operate the eatrh. and means mounted to move with the rotating reeord support in position to engage and raise the other end of the tripping lever so that the rah-h is disengaged.

l. The eombination with a sound reproduring nnu-hine. having a mandrel for sup porting a eylinder rerord, of a ent-otl' therefor eomprising a brake. yieldingly held normall v in engaging position, a ('ateh for bolding the brake in inoperative position, a tripping lever pivoted intermediate its ends to move with the reprodueer, and means mounted to move. with the mandrel for engaging the tripping lever, the tripping lever and the eateh being provided with elongated engaging means whereby the eateh is adapted to be engaged by the tripping levenduring aeonsiderable portion of the movement of the reprodueer.

5. The eombination with a sound reprodueing machine having a mandrel for supporting a e vlinder-reeord, ot' a cut-oil" therefor eomprising a brake yieldingly held nort'nally in engaging position. a eateh for holding the brake in immerative position provideil with an elongated bar extending along the path of travel of the reprodueer. a tripping lever pivoted intermediate its ends to move with the rqn'odueer and having one end in position to engage the elongated bar, and means mounted to move with the mandrel for engaging the other end of the tripping lever.

(3. The eombination in a sound reprodueing maehine, of a rutotl mechanism and an .operat ing member therefor movably mounted upon the mandrel of the machine in such manner that it may projeet. above the fare of the rord to operate the eut-otl' meehanism or may be witl'ulrawn within the eirclunlerta-e of the rerord to permit its removal from the mandrel.

T. The eombination in a sound reproducing nuu'hine. of a rut-otl' meehanism and an operating member therefor pivotally mounted upon the end of the mandrel of the maehine aml adapted in one position to projeet above the fare of the reeord for operating the cut oh" meehanism and in another position to lie within the eireuniferenre of the mandrel to permit the removal of the reeord from the mandrel.

pivoted to the end of the mandrel and having a head which can be swung into position adjacentto and projecting above the face of the record. 9. The combination in a sound reproducing machine, of a cut-01f mechanism and en operating member therefor comprising a link pivoted to the end of the mandrel and having a head which can be swung into position adjacent to and projecting above the face of the record end a spring for holding the link in position.

10. The combination in a sound reproducing machine, of a cut-off mechanism and an operating member therefor comprising a. link provided With the pivoted head 14: and spring means for holding the parts in positron.

signed my name'inthe presence of the two subscribing witnesses. I I

- JOSEPH EIFEL. \Vi'tnesses PAUL CARPENTER, JAY H. BROWN.

In testimony whereof, I have hereunder 

